Machinery for converting sheet material into receptacles



July 31, 1928. A 1,678,901

E. .CRAIG v MACHINERY FOR CONVERTING SHEET MATERIAL INTO RECFPI'ACLES Filed Aug. 18, 1924 I 'T Sheets-Sheet 1 July 31, 1928. 1,678,901

E. CRAIG IIAGHINBRY FOR CONVERTING SHEET MATERIAL m'rq RECE P'J'ACLES Filed Aug, 18, 1924 7 Sheets-Sheet g o; O k, 0 92 jiulmwivn' Zdu/flrd July 31, 1928.

E. CRAIG MACHINERY FOR CONVERTING SHEET MATERIAL IN'ro RECEPTAGLE Filed Aug. 18, 1924 Shee eet 3 l wxmvbow: .Z'dwa/r'd (fray I gym?? July 3 1, 1928.

E. CRAIG MACHINERY FOR convan'rme snnm' MATERIAL INTO RECEPTACLES 7 Sheets-Shed 4 Filed Aug. 18, 1924 Even/i071 met 0/" July 31, 1928.

- E. .CRAIG IACHINERY FOR CONVERTING SHEET MATERIAL INTO RECBPTACLES Filed Aug. 18, 1924 7 Sheets-Sheet 5 Jul 31, 192a E. CRAIG MACHINERY FOR couvzn'rma snss'r IATBRIAL- 1M0 RHCEPTAOLB s Filed Aug. 18. 1924 7 Shee sheet s ldwfzkd 0mg WSW MOW July 31, 1928.

E. CRAIG IACHINERFI FOR CONVERTING SHEET MATERIAL INTO RECEPTACLES.

7 Sheets-Sheet 7 3 w 6/ w WW. 1/ fllli 4. 3 v k x f E 2 Q J 6 W r \T f/fll 3 14 w 57,3

g J m 5 6 a 7 20 tacles,

Patented July 31, 1928.

UNITED STATES PATENT OFFICE. I

EDWARD 01mm,

]? ST. JOSEPH, MICHIGAN, ASSIGNOR TO. SARAN AC AUTOMATIC MA- CHINE CORPORATION, OF BENTON HARBOR, MICI-lIIGtAN, A CORPORATION OF DELA WARE.

MACHINERY FOR CONVERTING SHEET MATERIAL INTO RECEPTACLES.

Application filed August 18, 1924. Serial No. 732,682.

This invention relates to machinery for making receptacles from paper or other sheet material, and particularly to machinery for making butter dishes, or similar receptacles,

5 by automatically feeding and blanking the sheet material continuously, and by automatically converting the blanks successively severed from the end of the sheet-or strip of paper, or other sheet material, into receptacles of the desired character.

' Generally stated, the object of the invention is to provide a novel and improved construction of automatic machine for feeding and blanking the sheet material, and for converting the blanks into receptacles of the desired character, in a more satisfactory and better manner than heretofore, and in a manner tending to reduce the cost of production of butter dishes or similar recepand at the same time insure greater accuracy and certainty in the work'of converting the sheet material into receptacles of this kind. I i

It is also an object to provide certaindetails and features of construction and novel combinations tending to increase the general efficiency and the desirability of an auto matic machine for blanking and forming butter dishes, or other similar receptacles of this particular character, as will hereinafter more fully appear. t

It is also an object to provide an improved structure and arrangement whereby the cost of building and constructing a" machine of this kind will be materially reduced, and

expenses of the machine as well. To the foregoing and other useful ends, the invention consists ingthe matters hereinafter set forth and claimed, and shown in the accompanying drawings, in which- Fig. 1 is a side elevation of an automatic printing and blanking and dish-forming machine embodying the principles of the invention. Fig. 2 is a longitudinal section of said machine. I

Fig. 3 is a side elevation of the other side of said machine, with certain portions broken away, and with certain portions in longitudinal section, for convenience of illustration.

tending to reduce the upkeep or running Fig. 4 is an enlarged, horizontal section showing a portion of the machine, the section being taken on line H in Fig. 1.

Fig. 5 is an enlarged, vertical section of the right-hand end portion of the machine shown in Fig. 1, taken on a different line from the line on which the section is taken in Fig. 2.

Fig. 6 is a vertical section on line 66 in Fig. 5.

Fig. 7 is a plan of one of the blanks from which the butter dishes are made.

Fig. 8 is a perspective view of one of said blanks in partially folded condition.

Fig. 9 is a perspective of one of the completed butter dishes, showing the same fold- 8(fl and creased and stapled at the ends there- 0 As thus illustrated and referrin to Figs. 7, 8 and 9, the dish to be made is 0% the kind ordinarily known as a creased dish for use in sellin butter or similar commodities. The blan shown in Fig. 7 comprises an ob.- long, rectangular bottom section 1, side sections 2, upwardly tapered end sections 3,

corner sections 4, and triangular sections 5,.

these sections being separated from each other by means of score lines or crease lines,

6, 7, 8 and 9 formed by scoring or creasing the paper or other sheet material in the desired manner. The blanks are cut off at the corners, as shown at 10, to facilitate the folding and stapling operations, and after the blank has been formed and has been cut off from the sheet or strip of paper or other sheet material, in the form shown in Fig. 7, the folding operation shown in Fig. 8 is then accomplished, so that the upwardly tapered sections 3 are bent downwardly and inward- 1y toward each other, and so that the side walls 2 arealso bent downwardly and inwardly toward each other. At the same time the sections 4 and 5 are bent around as shown, so that the sections/i are superposed on the sections5, while. the latter are superposed upon the sections 3 which form the upwardly tapered and creased end walls of the dish, when the dish is finished. When too the two-ply or double-thickness flaps formed by the sections Land 5 have been folded around in proper position, wide staples 11 are then inserted from the outside, as shown across the meeting points of the in Fig.9

daps produced at the opposite ends two-ply of the dish, and through the upwardly tapered walls 3 of the dish, so that'each lug of each staple is inserted through three thicknesses of the paper or other sheet material, and then clinched on the inner surface of the dish, as shown in Fig. 9 of the drawings.

Thus the bottom 1 of the dish is rectangular,

the sections 4, do not overlap each other, but

merely meet at their points, or at the points formed at the corners 12 of the blank, as shown. Thus a dish is formed with square corners, but without any cracks or seams through which the contents of the dish could leak or escape, inasmuch as the creases formed at 13 inside of the dish, and the creases 14 formed outside of the dish, are not open cuts made by cutting through the paper or other'sheet material but are merely rounded edges formed by scoring the sheet .material along these lines, and by then folding the material upon itself, thus forming a .tight and non-leaking dish.

The machine for making the blanks and for automatically feeding the sheet material and blanks and converting the blanks into dishes, comprises,

ress 15 of any suitable or desired characteravingv rolls 16 and 17, for feeding and rinting the paper in the desire manner. aid rolls, and the inking rolls 18, are operated by the gears 19, throughwhich these difl'erentrolls-are interconnected. The entire train of gearing is driven bya gear 20, which latter is in turn suitably driven, as will hereinafter more fully appear. Said printing press feeds the sheet or strip of paper continuously, and prints any desired ornamentationor advertism or information on the outer. surface of the s eat of paper to be converted into dishes. s

' From'the printing press the sheet of paper 7 passes between the rolls 22and 23, the upper roll 22 being hollow and having a steam pipe 24 to heat the roll to dry the ink' on the upper surface of the sheet or strip of paper. The lower rill 23is arranged in a receptacle 25, which co tains the paraflin 26 for paraffining the under surface of the sheet, so that the inner surface of each dish will be paraffined in the desired manner. This receptacle .has a chamber 27 in the bottom thereof, and

steain can be admitted to this chamber by a preferably, a printing pipe 28, thereby to keep the parafin in melted condition. Excess of paraffin on the roll 23 is vavoided or controlled by the element '29 which rubs against this roll, and which can be moved toward or away from the roll by the adjusting screw 30 thereby to insure the right quantity of paraflin on the roll for the required work. Rolls 22 and 23 feed the paper at the same speed that the sheet or strip isfed by the rolls 16 and 17 of the printing press when the roll 23 is on the axis member or shaft 31 of the gear 32 which engages the gear 20 previously mentioned. The pressure of the upper roll 22 upon the paper resting on the lower roll 23 is controlled or regulated by set screws 33, the ends of the roll 22being supported in blocks 34 that slide up and down in guides 35, in a manner that will be readily understood.

The sheet: or strip of paper is then. fed between the feed rolls 341 and 351, the upper roll being supported by blocks 36 at the ides of the machine, which blocks 36 are sui ably mounted to slide up and-down, so that the,

roll 341 is moved up and down'relative to the lower roll 351 with which it cooperates to feed the sheet or strip of paper. A table 37 is provided between the rolls 22, 23 and the rolls 341, 351, for the strip or sheet of paper to rest upon. The roll 351 is mounted on the shaft 38 of the sprocket wheel 39, and

this sprocket wheel is connected. by a chain .40 with the sprocket 41 on the shaft 31 previously mentioned, whereby the roll 351 is driven at higher speed than the roll 23, for

a purpose which will hereinafter more fully appear. 1

The main drive shaft of .the machinefis the shaft 42, which is mounted in suitable bearings, and is connected by gears 43, 44, 45, 46, 47 and 43 with the gear 32 previously mentioned, whereby the various printing press rolls and feeding rolls are all driven at the proper or desired speeds.

After passing through the printing press, and after passing betweenthe rolls for 'feed ing the sheet or strip, the latter then passes through the blanking machine, which latter comprises the upper and lower dies 49 and 50 betweenwhich the paper or sheet of material must pass in order tobe blanked out in the manner shown in Fig. 7 of the drawings. The lower die 50 is carried by the body frame 51 of the machine, while the upper die 49 is carried by the vertically movable head 52, which latter has downwardly extending side, portions 53 which engage the eccentric cam devices 64 on the opposite ends of the shaft 42 previously men tioned whereby the'head 52 is reciprocated up and down in the desired manner, and in properly timed relation to the other elements of the machine asa whole. The upper die is provided with creasing knives or blades 55, @Of any suitable character, arranged to form the crease lines shown on thefblank illusitrated in Fig. 7 of the drawings, so that the blank may be foldedalong these lines, as previously explained; These creasingknives 6 or blades co-operate with the lower die 50.,

, which latter has the parallel grooves 56' for making the crease lines 6 previously mentioned, on the blank, and the lower die also has the grooves 57 for forming the crease lines 7 previously mentioned, and has grooves 58 for forming the crease lines 8 previously mentioned. The grooves 59 are for forming the crease lin s 9 previously mentioned, and it will be understood that the grooves thus formed in the'low r die receive the knives or )lades of the upper die, thus creasing the blank in the desired manner. the upper die has the cutting knife 60 which co-operates with the stationary" knife 61 on the lower die to cut off the end blank of the strip along the lines or edges 62 of the blanks, and it will be understood that the two dies are provided with means for forming the notches in the parallel edges of-the sheet or strip of paper, which notches form the beveled or angled portions 10 of the blanks. It will be seen that these V-shaped notches are cut in the edges of the sheet or strip of paper, opposite each other, and that the severing 'lines predetermined for the. blanksintersect the inner ends or points of these notches, so that each blank when cut off is of the shape shown in Fig. 7 Thus the edges 62of the blank form the upper side 5 edges of the finished dish,

10 form the upper edges of the end walls of the dish, in conjunction with the edges 63 of the upwardly-tapered end walls previously mentioned. The head which carries the upper die of the blanking press is also provided with spring-pressed niembers 64 adapted to yieldingly engage the sheet of ,paper .or other sheet material, just ahead of the blanking operation, in order to make sure that the paper will be held stationary during the blanking operation. The upper head of the blanking machine is also provided with a spring-pressed rod 65 for marking the blanks. The rod 65 .is'preferably operated by a cam 66 on the shaft 67, which latter is automatically operated by a link 68 pivoted at 69 on a stationary portion of the machine, I at its lower .end, and pivoted at 70 'to the upper end of the arm 71 which is loose on said shaft 167, but connected thereto by a ratchet device 710, whereby this shaft is automatically actuated by the up and down movement pf the upper head of the blanking machine. Therefore, the came 66 is so rotation, that the rod 65 is pushed downward at the right time by thecam projection 660, to mark every fiftieth blank, for example, so

that by counting the marked dishes the total, 65 number made can be estimated readily. For

At one side,

and

while the edges 81 brings the formed, and is so timed in its intermittent this purpose the ratchet 710 will have fifty teeth, but any other number may be used. The spring '72 is applied to the rod 65 to keep the latter normally raised, so that the upper end of this rod will always bear against'the cam 66, whereby the rod is reciprocated vertically in the desired manner. The side portions 53 slide up and down in guides 7 1 provided on the stationary body frame. Levers 75 are pivoted at 76 on the sides of the body frame, and have their shorter ends connected by links 77 with the previously mentioned supports '36 for the upper roll 341, and tappets 7 8 are provided on the vertically reciprocating side portions 53 to engage the set screws 7 9 on the longer ends of these levers, whereby the upper feed roll is automatically movement of the upper head of the blanking press, in such a manner that the rolls 34:1 351 are rendered inoperative to feed the paper during the blanking operation.

From the blanking press the sheet or strip of paper passes on to the dish-forming machine, or machine for forming receptacles of any suitable character, comprising the vertically reciprocating member 80 upon the upper endof which the oblong or rectangu lar block or fol-111,81 is mounted. The member. 80 slides up and down in the stationary guideway 82 suitably formed in the body frame or the machine. At the time that the end blank is cut off by the knife 60, the form -81 is in a partially raised position, and is in a position to receive the said end blank, so that when out off the blank rests upon the flat top of this'form 81, with the sections 3 of the blank in engagement. with the under sides of the upturned end portions of the stationary folding fingers 83, shown in Figs. 5 and 6 ofthe drawings. \Vhen the plunger whereby the upward movement of the plungor head 81 raises the bottom section 1 of the blank, but causes the sections 2 and 3 to be deflected downward. The further upiward movement of the form or plunger head the position shown in'Fig. 8, and the creased edges 14 then strike the inwardly inclined surfaces 85 of the stapler heads 86, which latter may be of any suitable known or ap proved form, and wliichare preferably arranged horizontally in position to insert the staples 11 previously mentioned.- Durin I folded an such insertion, of course, the doubled end portions of the dish are pressed against'the vertically disposed and flat end 87 of the plunger head or form 81 In 'this way the surfaces prevlously mentloned.

sections 4 and 5 around into lifted by the downward 1 head or form 81 then moves upward, the side portions 2 of the blank strike the stationary walls 84 of the folding means,

staplers are advantageously arranged horizontally in opposed relation to each other, 1

and 'in such a manner that the staple form-- down by the eccentric cam device 88 on the shaft 12, in the manner shown in Figs. 2, 3

" rocated vertically, t

ers and drivers (not shown),of any suitable character, are actuated horizontally to compress the end portions of the dish and to then insert the two staples in the desired manner. The member 80 is operated up and and 5, through the medium of the arm 89 "and the link 90, in a manner that will be readily understood, the other end of the eccentric stra being connected by a link 91 with the stationary body frame, so that the link 90 is reciprocated up and down to reciprocate the plunger head 81 in properly timed .relation to t 92 is fed to the staplers, by feed devices 93, of any suitable character, operated by the rods 94: connected at their lower ends to the levers 95, which latter are pivoted at 96 upon, a stationary portion of the machine. These levers 95 have rollers 97 to engage the cams 98, whereb the rods 94 are reciplius causing the ratchet mechanism 99 of said feed devices to intermittently feed-the wire in the manner I 'commonlyemployed in stapling machines,

whereby the wire is supplied by which the staples are made. Upwardly extending fingers 100 keep the end walls of the completed dishes pressed inward, somewhat, and cause these end walls to slide upwardly over the v hooks 101, which are mounted on the lower end portions of the vertically reciprocating members 102, which latter are connected by links 103 to the distal ends of the swinging arms 104 suitably pivot-ed at 105 on stationary portions of the machine. A rod 106 connects one arm 10 1 with the actuating arm 107 below, which arm 107 has a roller 108 to engage the cam 109 on the shaft'e2 previously mentioned. A spring 110 connects the lciwer end of the rod 106 with a stationary portion of the-machine, so that theroller 108 is maintained in engagement with its allotted cam. The two arms 104 are rigid with the rock shaft 105, so that actuation of one arm causes the actuation of all of the hooks 101 previously mentioned. At t e proper time therefore, insured by a proper timing of the difl'erent operative elements of the. machine, the hooks 101 engage the lower edges of the end walls of the; finished 1 dish on the plunger head 81, and the plunger head then moves downward and the hooks 101 move upward, thus in effect lift upside down are caused to nest or stack in theguides 111, and the guides are so formed that the stack moves upwardly and then horizontally, so that the dishes at the upper end of the stack fall off and are rece ved F in any suitable manner. For the actuation of the staplers the outer, horizontally reciprbcating heads 112 of the staplers are cone other elements. Wire operating to continuouslyfeed the. paper,

nected by links 113 with the upper ends of the lever arms 114:, and the latter are plvoted at 115 on stationary portions of the machine. The lower ends of these levers 114.- have engaging portions 116 for engaging the cam grooves 117 in the cam devices 118 on the outer ends of the shaft 12 previously mentioned. Thus'the levers 114 are vibrated about their azies 115, in a common inclined plane, the cam grooves 117 being properly shaped for this purpose, wherebv the stapler heads 112 are reciprocated toward and away from each other in a common horizontal plane. Thus the staples are driven in 'a common horizontal plane, but it will be seen that'nevertheless the end walls of the dish,"

like the side walls, are flared or inclined outwardly. I This is accomplished, as shown and described, by providing the plunger head 81 with flat and vertically disposed end surfaces, as stated, against which the flexible end portions of the dish can be pressed by the horizontally disposed staplers,-in order I that the inner ends or points of the staples may be clinched against the ends of the plunger head 87 in a manner that will be readily understood. Thus the staple formers, (not shown) of the staplers move the end walls of the dish a distance before compressthe ends of the plunger head. This, as s own and described, is in order that the staplers may be arranged horizontally, in a common horizontal plane, which is advantageous in various ways. The 0 posing ends of the stationary stapler heads 86 are formed, as shown in Fig. 6, to co-operate in the folding of the blank, in the manner previously explained.

Thus each time the plunger head 81 moves upward a dishis formed and stapled, and during such time the blanking press is forniing another blank; and, during thistime, the prmtingpress and the rolls 22 and 23 are but the paper thus fed will simply buckle upwardly, in front of the vblanking press, and this slack in the paper will then be taken up quickly'as soon as the upper head of the blanking press moves upward, and l as soon as the feed rolls 34:1 and 351 again resume their function of feeding the paper. This, as previously explained, is because of the fact that the roll 341 works at a higher speed than the rolls of the printing press, and, consequently, the accumulation of paper formed 'between the printing press and the blanking press, during. the o eration of simultaneously-forming a bla while a previously formed blankis being converted into a dish, will be quickly fed forward in the I desired manner as soon as the blanking operation and the dish-forming operation are Ill) completed. Therefore, each time the'pa erW J is moved forward in the blanking press the I end blank is brought into proper position in the dish-forming machine, directly above the plunger head 81, and then when the blanking pressis operating the knife 60 cuts 01f this end blank, and at the same time forms another blank on the end of the sheet or strip. Simultaneously therewith, the plunger 81 is moving upward to form the cutoif'blank into a dish. The stapling operation, therefore, is performed by the driving of the staples in a common horizontal plane, which plane is a distance above the plane'in which the blanking operation is accom-- 'plished, said blanking operation being per- 5 formed in the common plane of feeding and provided with a printing the paper. The form or plunger head 81 does not tightly fit the dish when the latter is finished, and .the dish is easily stripped or detached from the plunger head 1 81 by the hooks 101 in the manner previousl explained.

The main driving shaft 119 is mounted in suitable hearings on thebodyframe, and is pinion 120 for engagement with the gear wheel 121 mounted on the shaft 42 previously mentioned. The shaft 119 can be driven many suitable or desired manner, and through the gearing 120 and 121 will rotate the shaft 42 and thereby operate the printing press and the feeding rolls and the blanking press and the dish-forming 'machine, through the power-transmitting connections previously described.

Thus the paper is automatically printed and blanked and formed into receptacles each having upwardly tapered, creased end walls, upon'the inner surface of each'end of the dish, and having inclined side walls and end walls disposedat right angles to each other to provide square corners for the top of the dish. In the stapling operation, as explained, the end portions of the dish are pressed inward and caused to assume vertical positions in order .tocolnpress the-creased and doubled portions of the sheet material against the ends of the plunger head 81, and in order toclinch the staples in the manner explained, but the 'endsrof the dish tend to. spring outward when released by the stapling m'echanisrm-so that the end walls of the dish are practically inclinedat the same angle that the sides 2 are when the dish is finished. In practice, of course, the upper edges 62 of the'sides willv tend to curve orbow outwardly a little, perhaps. because of themore or less: resilient quality of the sheet materiahand the tendportions ofthe dish ency resulting from the folding of the sheet materials along the lines 8 Previously mentioned. However, the pressing of the end inwardly until they bear of the, plunger head 81,

against the ends tends to bend the material-a little more g shar l alon the lines 8 and the corners,

p y g i the-normal positions, substantially so, WhlCh thus formedby the lines 8, when the dish of the sheet or strip of paper.

shown vmore clearly is viewed from above, are square corners, or approximately so,- in the making of the dishes by the machinery and method shown and described. When the walls 3 are pressed inward, during the fastening operation, they are substantially upright and a'rallel, as they will be pressed fiatwise against the opposite ends of the plunger head 81, and the two-ply flaps formed by the sections 4 and 5 will-then be stapled to these upwardly tapered walls 3, and by this it is meant that these walls taper upwardly when the dish is right-side up, as shown in Fig. 9 of the drawings.

at opposite sides of the dish, and the square corners of the dish are located inthese planes. The receptacle has four sides, of

, Thus the two-ply flaps, when the receptacle is finished, occupy inclined planes course, inasmuch as the "sections v3, 4 and 5 are narrower, than the longer side walls 2 which extend longitudinally of the oblong receptacle.

It will be seen that guide plates 122 are provided on rods 123, these plates being disposed in position to engage the side edges The rods 123 are endwise adjustable, being mounted in the body frame-forthis purpose, so that the 'guide'plates 122 can be moved toward and away from each other to adjust them relatively to the sheet or strip of paper.

As a matter of still further improvement, it willbe seen that the elements 124. shown more clearly in Fig. 6, are disposed above the hooks or engaging portions 101, and are rigid therewith, being rigidly united to the vertically reciprocating members 102 previously described. Thus, while the hooks 101 are engaging-the edges of the lowermost dish or receptacle, the portions 124 are at the same time engaging the lower edges of a dish above, so that the given suitable support thereof; In addition,

at the lower end the portions 125, in Fig. 5, are in position to receive the lower edges 62 of the walls 2 of the receptacle, when the latter is stack of dishes isv lifted upwardly by the hooks 101, whereby the entire-stack of nested dishes is supported on these portions 125 when the hooks 101 and the engaging elements engage the lowermost receptacle to take a fresh grip on the lower portion of the stack. As soon as the dishes are successively raised above the upstanding portions 100, the creased and folded opposite sides of the receptacles are free to spring outward, so thateach receptacle ultimately springs outwardly at its ends upon the tops of the enagmg ments 124 the walls of the receptacles assume 124 move downwardly to elements '124, and above these elesurface of the sheet or strip is paraflinedi by the roll 23, as reviously explained, an

it is this parafline surface of thesheet material which is presented to the four fiat sidesof the plunger head 81, which latter is rectangular and formed with parallel flat sides. 'Howe'ver, inasmuch as this rectangu lar plunger head does not fit the interior of the receptacle, the receptacle being ofa different shape, it followsthat the parafiined inner surface of the receptacle does not come in contact with the sides of the plunger head,

except where the stapling operations are performed, and in this way the paraflined interior of the receptacle does not adhere to the plunger head, to any great extent, and hence the stripping or detaching of the finished receptacle from the easily accomplished.

What I claim as my invention is:

ing of the sheet material in the desired manner, preparatory to the folding thereof,

thereafter folding the sheet material along predetermined lines formed on the blank, thereby forming overlapping portions at 0pposite sides-of the receptacle; so that a substantially rectangular receptacle will be formed withfour outwardly inclined sides,

. temporarily pressing inwardlythe two opoperation comprising the insertion of a single' staple througheach tapered section to' posite sides having said overlapping-sportions, so that the middle portions of these two sides are substantially upright and parallel during the, fasteningjoperation, and thereafter releasing the receptacle and allowing said inwardly pressed sides to spring outward. i v

2. A method as specified in claim 1,1,said

middle portions of the two opposite sides which are pressed inwardly being in the form'of upwardly tapered and creased inner end walls for the receptacle,- whereby the blank is folded in a -manner to prevent. cracks or openin s through which leakage of the contents oft e receptacle could occur.

3. A method as specified injcl-aiin 1, said blanking operation comprising" the forming of taperedsections foldabl connected with other portions of the blan and said folding operation roducing two-ply creased flapswhich are olded against the outer sides of said tapered'sections, and said fastening fastensaid flaps thereto.

4. Amethod as, specified in claim 1,, said blanking and folding operations co-operating to -prod-uce two-ply creased. flaps forming certain of said overla pin portions, in a manner to prevent any ap.

' ping another flap, with all of said flaps on the outer surface of the receptacle, and with plunger head isv om overlap upwardly tapered walls having creased side two-ply flaps having blunt ends forming meetin points a distance below the upper edge 0 the receptacle, and also substan tially square corners for the ,top of the .receptacle, and fastening the two-ply flaps to the upwardly tapered walls, comprising the pressing of said tapered Walls inwardly, so that these tapered walls are substantially at right angles to the bottom of the receptacle during the fastening operation, and there.

after allowing these walls to spring outward '6. A method as specified in claim 1, com- I prising the intermittent feeding of sheet ma- 1. The method ofmakmg a receptacle from sheet material, comprising the blank-' terial to form successive blanks therefrom,

and using the feeding motionto feedeach blank into position'to be folded in the manner stated.v i

. 7. The method of making receptacles,

comprising the blanking of sheet material to forma blank that can be folded in" the desired manner, folding the blank to'provi-de tion thereof in the ultimate product, performing a fastening operation on the material thus presse beyond its ultimate position in the finis ed receptacle, and thereafter allowing the inwardly pressed material to spring outward to assume the normal position thereof. Y

8. In a machine for making receptacles, the combination of a printing press for printing and feeding sheet material, drying and paraflining rolls to feed the sheet ma: terial from the printing press, comprising a heated roll and a parafiining roll between.

which the paper is 'fed, and instrumentalities for thereafter blanking the sheet material, and for ultimately and successively folding the blanks, and for fastening the blanks in folded position, thereby to, produce receptacles which are printed and dried on the 4 outside, and which have a paraflined interior surface.

9 .'In a machine for-making receptacles, the combination of blanking press means to form transverse fold lines between said parallel lines, forming the rectangular, bottom of the receptacle, means to form outwardly converging fold lines leading from the corners formed between said parallel lines and said transverse lines, outside of said transverse lines'and' between said parallel lines, means to form outwardly" divergentfold lines leading from the Lends of said transverse line's, outside of said parallel lines, and

receptacle,

means to form oblique edges for the four corners of the blank, forming four obtuse corners in which said outwardly divergent lines terminate, whereby to produce blanks which are foldable into receptacles having rectangular bottoms, and having substantially rectangular tops, said oblique edges forming horizontal edges for the top of each in combination with instrumentalities for successively folding the blanks into receptacles each having outwardly inclined side walls, said instrumentalities comprising means for pressing two opposite walls of the receptacle inwardly beyond their normal positions in the finished receptacle, in combination with means for inserting staplesthrough the portions thus temporarily pressed toward each other, thereby to fasten the blank in folded condition,

whereby the. sections between said outwardly convergent. lines form upwardly tapered walls at two opposite sides of the receptacle. 10. In a machine for making receptacles,

having outwardly inclined side walls, in-- strumentalities for successively folding the blanks, and for stapling the blanks in folded condition, including means to press two opposite sides of each receptacle inwardly and.

toward each other beyond the normal posip tions of these sides in the finished receptacle, thereby to temporarily hold these opposite sides in position to receive the fastening staples. v p

11. A structure as specified in claim 10, said mstrumentalities comprising two oppositely arranged stationary elements for engaging opposite edge portions of the blank, and inclined stationary portions to engage other edge portions of the blank, said first mentioned elements being disposed in position to cause said abnormal deflection of two opposite sides of the receptacle toward each other, said instrumentalities also comprising a plunger adapted to co operate with said elements to fold the blanks, said plunger having fiat and substantially parallel side surfaces to receive said abnormally deflected side portions of the receptacle, upon which these portions are compressed to perform the stapling operation thereon.

12. A structure as specified in claim 10, said instrumentalities comprising a plunger head upon which the blanks are successively folded, said-head having parallel outer surfaces to receive said abnormally deflected portions of the receptacle, upon which these portions are compressed to perform the stapling operation thereon.

. 13. A structure as specified in claim 10,- said instrumentalities being operative to fold each blank to produce non-overlapping two-ply flaps at opposite sides of each receptacle, and having means to" insert staples through said flaps, and through V the upwardly ta ered inner walls formed by the sections 0 wardly convergent lines.

14. A structure as specified in claim '10, said instrumentalities comprising stationary elements and movable means (to-operating therewith to form each receptacle upside down, in combination with means for receivsheet material between said outing each receptacle and nesting the re- I ceptacles together to form a stack.

. 15. A structure as specified in claim 10,

said instrumentalities comprising oppositely ,1

having means for engaging said-cams, and

means for connecting said levers to actuate said staplers, whereby rotation of said shaft causes the simultaneous actuation of said staplers toward and away from each other.-

in the said common plane thereof, in combination with a vertically lunger head to' support the blank during the folding thereof, having opposite parallel sides upon which the stapling operations are performed.

17 In a machine for making receptacles, the combination of a reciprocating plunger of folding a blank to convert the same into -a receptacle, 'instrumentalities to co-operate with said plunger head to fold the blank in a manner to produce a receptacle having outerate at right angles to the reciprocating motion of said plunger head, and in position to insert staples through opposite sides of the receptacle, against opposite sides of said plunger pressthe opposite sides of the receptacle toward each other, beyond the positions which they occupy in the finished receptacle.

' 18. A structure as specified in claim 17, said instrumentalities being adapted to fold the blank in a manner to produce upwardly tapered inner walls at opposite sides of the receptacle, and two-ply outer flaps, said staplers being operative to insert staples through said flaps and upwardly tapered staplersv disposed in position i reci rocatin head, in a manner to temporarily I walls, in such a manner that the two oppo-v.

said instrumentalities being operative to fold the blank to produce a receptacle having a rectangular bottom, and a substantially rec tangular-top, with non-overlapping two-ply flaps at opposite sides of the receptacle,'said head upon which to perform the operation I staplersbeing'operative to insert the staples through said flaps.

In a machine for making receptacles, of predetermined form and shape from blanks, folding instrumentalities comprising "a plunger head of different shape, whereby said plunger head does not fit the interior of the finished receptacle, and including means co-operating with said plunger head to'fold the blank thereon, and to press certain portions thereof. inwardly beyond the normal positions thereof in the finished receptacle, for the purpose of performing fastening operations thereon.

21. A structure as specified in claim 20, said plunger head being rectangular and having parallel fiat sides, and said receptacle having outwardly inclined sides.

22. A- structure as specified in claim 20, said plunger head having parallel flat opposite sides to receive certain portions of the receptacle, and said instrumentalities com- V prising stapling mechanism operating ,at

paper rolls to receive the sheet or strip from I the printing press, power transmitting connections for operating one of said rolls, a feeding device to intermittently feedv the sheet or strip of paper, arranged to receive one of said rolls being heated to dry the ink the sheet or strip from said rolls, means on the axis of .said driven roll and whereby the rotation of said driven roll operates said feeding device, and instrumentalities for receiving thesheet or strip from' said feedin device, operative without stopping said printing press, for blanking the sheet material and successively converting the blanks into receptacles. j

25. A structure as specified in claim 24, said driven roll being equipped with means for applying parafiin to the under side of the sheet or strip of paper. I

.26. A structure as specified in claim 24,

applied-to the sheet or strip by said printing press, the heated .roll'pressmg the paper against the driven rol1.

. *27. A structure as specified in claim 24, said f device comprising continuously driven fee rolls,'and means forintermit "tently pausing separation of said rolls to; mtermlttently the feeding of the sheet claim 20,-

to said blanking'mear'is and said instrumentalities.

28. A structure as specified in claim 24,

in combination with gearing on the axis ofsaid driven roll whereby operation of said driven roll operates said printing press.

29. A structure as specified in claim 24, in combination with means whereby a portion of said power transmitting means in the form of a driven shaft is operative to transmit power to operate said blanking and receptacle forming instrumentalities in sequential timed relation and whereby the entire machine is driven by this one shaft. 30. In a machine for making receptacles, the combination of instrumentalities" for folding and fastening the blanks to produce the desired receptacles,--so that the receptacles are formed upside down and accumu lated in a stack, engaging portions to engage the lower edges of each receptacle, to release the receptacle from the forming in-.

strumentalities, means for lifting the receptacle and those on top thereof to a higher position, means for supporting the lower receptacle and those supported thereon in said elevated position, elements rigid with said portions'and disposed above in position to successively engage the lower edges of v the receptacles, and means for vertically reciprocating said elements and engaging porflOHS, said supporting means holding the stack against downward movement when said elementsand engaging portions move downward.

31. In a machine for making receptacles,

the combination of a blanking press for blanking the sheet material to form' blan ks, instrumentalities for successively converting the"blanks"- into receptacles, feeding means serving to feed the sheet to said blanking press and also to said instrumen-' talities, in combination with guide plates disposed in position to engage the edges-of the sheet or strip, with their straight lower edges on the blanking press, thereby to properly guide the sheet or strip through the "blanking press and toward and. into said instrumentalities, and transverse rods upon the inner ends of which said plates are mounted in fixed position to engage the.

side edges-of the sheet or strip, and supporting'means on whichsaid rods are endv wise adjustable topro rly adjust the guide plates relatively to t e sheet or strip of paper.

32. In a machine for makingreceptacles,

the combination of a printing press, rolls to feed the sheet or strip of papertherefrom, a feeding device to receive the sheet or strip from said rolls, a blanking press, for

forming the blanks" from which thereceptacles are made, adapted to form each blank with a rectangular bottom section, means for successively converting the blanks. into after the blank is in position for folding,

spring-pressed means to bear upon the sheet and stop its feeding motion during the operation of the blanking press, and automatic means to control said feeding device to W to take up the slack in the sheetior strip,-

cause a cessation of the feedin action there-' of while, said spring-presse means are bearing against the sheet or strip of paper,

-whereby the sheet or strip will buckle upwardly between saidrolls and said feeding device, in combination with means for operating said feeding device at a higher speed between said rolls and the feeding device,

thereby to quickly feed the sheet or strip the desired distance after each blanking operation. a

v33. In a machine for makin receptacles, the combination with means or automatically paraflining the sheet or strip of' paper on one side thereof, instrumentalities for automatically blankin the sheet material and for converting tl ae freshly parafiined blanks intoTeceptacles, said instrumentalities comprising a plunger head shaped to occupy the interior of each receptacle, while the receptacle'is bein formed, but of a dif-' ferent shape from t e interiorof the finished receptacle, thereb to reduce the tenceptacle to adhere to theQplimger head.

*EDWARD CRAIG.

-dency of the parafline interior of the re- 

